linux-kernel - [PATCH 02/18] rtc: s5m: drop needless struct s5m_rtc

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Message-Id: <20250228-rtc-cleanups-v1-2-b44cec078481@linaro.org>
Date: Fri, 28 Feb 2025 14:07:15 +0000
From: André Draszik <andre.draszik@...aro.org>
To: Chanwoo Choi <cw00.choi@...sung.com>, 
 Krzysztof Kozlowski <krzk@...nel.org>, 
 Alexandre Belloni <alexandre.belloni@...tlin.com>, 
 Joel Stanley <joel@....id.au>, Andrew Jeffery <andrew@...econstruct.com.au>, 
 Hans Ulli Kroll <ulli.kroll@...glemail.com>, 
 Linus Walleij <linus.walleij@...aro.org>, 
 Neil Armstrong <neil.armstrong@...aro.org>, 
 Kevin Hilman <khilman@...libre.com>, Jerome Brunet <jbrunet@...libre.com>, 
 Martin Blumenstingl <martin.blumenstingl@...glemail.com>, 
 Tóth János <gomba007@...il.com>, 
 Dianlong Li <long17.cool@....com>
Cc: linux-kernel@...r.kernel.org, linux-rtc@...r.kernel.org, 
 linux-samsung-soc@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-aspeed@...ts.ozlabs.org, linux-amlogic@...ts.infradead.org, 
 André Draszik <andre.draszik@...aro.org>
Subject: [PATCH 02/18] rtc: s5m: drop needless struct s5m_rtc_info::i2c
 member

When this driver was converted to using the devres managed i2c device
in commit 7db7ad0817fe ("rtc: s5m: use devm_i2c_new_dummy_device()"),
struct s5m_rtc_info::i2c became essentially unused.

We can drop it from the structure and just use a local temporary
variable, reducing runtime memory consumption by a few bytes.

Signed-off-by: André Draszik <andre.draszik@...aro.org>
---
 drivers/rtc/rtc-s5m.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/rtc/rtc-s5m.c b/drivers/rtc/rtc-s5m.c
index 36acca5b2639e272dd9baed06ea5582f635702b0..77dd61c30681b8f0a2f23063ad5f7eb52f5b7158 100644
--- a/drivers/rtc/rtc-s5m.c
+++ b/drivers/rtc/rtc-s5m.c
@@ -146,7 +146,6 @@ static const struct s5m_rtc_reg_config s2mps15_rtc_regs = {
 
 struct s5m_rtc_info {
 	struct device *dev;
-	struct i2c_client *i2c;
 	struct sec_pmic_dev *s5m87xx;
 	struct regmap *regmap;
 	struct rtc_device *rtc_dev;
@@ -640,6 +639,7 @@ static int s5m_rtc_probe(struct platform_device *pdev)
 {
 	struct sec_pmic_dev *s5m87xx = dev_get_drvdata(pdev->dev.parent);
 	struct s5m_rtc_info *info;
+	struct i2c_client *i2c;
 	const struct regmap_config *regmap_cfg;
 	int ret, alarm_irq;
 
@@ -675,14 +675,14 @@ static int s5m_rtc_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	info->i2c = devm_i2c_new_dummy_device(&pdev->dev, s5m87xx->i2c->adapter,
-					      RTC_I2C_ADDR);
-	if (IS_ERR(info->i2c)) {
+	i2c = devm_i2c_new_dummy_device(&pdev->dev, i2c->adapter,
+					RTC_I2C_ADDR);
+	if (IS_ERR(i2c)) {
 		dev_err(&pdev->dev, "Failed to allocate I2C for RTC\n");
-		return PTR_ERR(info->i2c);
+		return PTR_ERR(i2c);
 	}
 
-	info->regmap = devm_regmap_init_i2c(info->i2c, regmap_cfg);
+	info->regmap = devm_regmap_init_i2c(i2c, regmap_cfg);
 	if (IS_ERR(info->regmap)) {
 		ret = PTR_ERR(info->regmap);
 		dev_err(&pdev->dev, "Failed to allocate RTC register map: %d\n",

-- 
2.48.1.711.g2feabab25a-goog